JP7456281B2 - Vehicle light guides and vehicle lights - Google Patents

Vehicle light guides and vehicle lights Download PDF

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JP7456281B2
JP7456281B2 JP2020086895A JP2020086895A JP7456281B2 JP 7456281 B2 JP7456281 B2 JP 7456281B2 JP 2020086895 A JP2020086895 A JP 2020086895A JP 2020086895 A JP2020086895 A JP 2020086895A JP 7456281 B2 JP7456281 B2 JP 7456281B2
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light
light guide
vehicle
incident
side light
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JP2021182488A (en
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宗一郎 檀浦
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Ichikoh Industries Ltd
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Ichikoh Industries Ltd
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Priority to PCT/JP2021/018401 priority patent/WO2021235345A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/35—Brake lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、車両用導光体及び車両用灯具に関する。 The present invention relates to a vehicular light guide and a vehicular lamp.

従来、複数の灯具ユニットを備える車両用灯具が知られている。例えば、車両の後部に車両側とバックドア側とに跨って配置される車両用灯具は、車両側の第１灯具ユニットと、バックドア側の第２灯具ユニットとを有する（例えば、特許文献１参照）。 2. Description of the Related Art Conventionally, vehicle lamps including a plurality of lamp units are known. For example, a vehicular lamp disposed at the rear of the vehicle across the vehicle side and the back door side has a first lamp unit on the vehicle side and a second lamp unit on the back door side (for example, Patent Document 1 reference).

特開２０１８－１８５９８７号公報JP2018-185987A

特許文献１に記載の車両用灯具では、第１灯具ユニット側に設けられた光源からの光の一部を出射面から出射し、また、光の一部を出射面で内部反射して第２灯具ユニット側に供給する構成である。しかしながら、この構成では、光が意図しない方向に出射して点光等を発生させる可能性がある。 In the vehicle lamp described in Patent Document 1, a part of the light from the light source provided on the first lamp unit side is emitted from the output surface, and a part of the light is internally reflected by the output surface and transmitted to the second lamp unit. This is a configuration in which the light is supplied to the lighting unit side. However, with this configuration, there is a possibility that the light may be emitted in an unintended direction to generate point light or the like.

本発明は、上記に鑑みてなされたものであり、点光等の発生を抑制することが可能な車両用導光体及び車両用灯具を提供することを目的とする。 The present invention has been made in view of the above, and an object thereof is to provide a vehicular light guide and a vehicular lamp that can suppress the occurrence of flashing and the like.

本発明の第１態様に係る車両用導光体は、光源からの光を制御して入射する入射面と、前記光の一部を第１方向に反射する第１反射面と、前記光の一部を前記第１方向とは異なる第２方向に反射する第２反射面とを有する入射側導光部と、前記入射側導光部から前記第１方向に分岐し、前記第１反射面で反射された前記光を正面側に出射する第１出射面を有する出射側導光部と、前記入射側導光部から前記第２方向に分岐し、前記第２反射面で反射された前記光を外部ユニットに供給する第２出射面を有する供給側導光部とを備え、前記第１反射面は、前記出射側導光部からの光を前記入射面側又は前記出射側導光部側へ向けて反射するように設けられる。 A light guide for a vehicle according to a first aspect of the present invention includes: an entrance surface through which light from a light source is controlled and incident thereon; a first reflection surface through which part of the light is reflected in a first direction; an incident-side light guiding section having a second reflecting surface that reflects a portion of the light in a second direction different from the first direction; and a second reflecting surface branching from the incident-side light guiding section in the first direction; an exit-side light guiding section having a first exit surface that outputs the light reflected by the light to the front side; a supply-side light guide section having a second output surface that supplies light to an external unit, and the first reflective surface directs the light from the output-side light guide section to the input surface side or the output-side light guide section. It is installed so that it reflects towards the side.

また、前記第１方向と前記第２方向とは、反対方向であってもよい。 Moreover, the first direction and the second direction may be opposite directions.

また、前記第１反射面は、前記出射側導光部側から前記第２方向を見た場合に前記供給側導光部の全体を覆う範囲に設けられてもよい。 Further, the first reflective surface may be provided in a range that covers the entire supply side light guide when viewed in the second direction from the output side light guide.

また、前記入射側導光部は、前記出射側導光部との間で鋭角を形成するように一方向に延びていてもよい。 Further, the incident side light guide portion may extend in one direction so as to form an acute angle with the output side light guide portion.

また、前記出射側導光部は、前記第１方向の端部に他の光源からの光を入射可能な入射端面を有し、前記出射側導光部からの光は、前記入射端面から入射した光を含んでもよい。 Further, the output side light guide section has an entrance end surface that allows light from another light source to enter at the end in the first direction, and the light from the output side light guide section is input from the input end surface. It may also include light that has been

本発明の第２態様に係る車両用灯具は、光源と、上記の車両用導光体と、を有する第１灯具ユニットと、前記第１灯具ユニットと分離して設けられ、前記車両用導光体の前記第２出射面から出射される前記光が供給される第２灯具ユニットとを備える。 The vehicle lamp according to the second aspect of the present invention comprises a first lamp unit having a light source and the above-mentioned vehicle light guide, and a second lamp unit provided separately from the first lamp unit and supplied with the light emitted from the second emission surface of the vehicle light guide.

本発明によれば、点光等の発生を抑制することができる。 According to the present invention, it is possible to suppress the occurrence of spot lights and the like.

図１は、本実施形態に係る車両の後部の一例を示す図である。FIG. 1 is a diagram showing an example of the rear part of a vehicle according to this embodiment. 図２は、本実施形態に係る車両用灯具の一例を模式的に示す図である。FIG. 2 is a diagram schematically showing an example of a vehicle lamp according to the present embodiment. 図３は、第１灯具ユニットによる動作の一例を示す図である。FIG. 3 is a diagram showing an example of the operation of the first lamp unit. 図４は、第１灯具ユニットによる動作の一例を示す図である。FIG. 4 is a diagram illustrating an example of the operation of the first lamp unit.

以下、本発明に係る車両用導光体及び車両用灯具の実施形態を図面に基づいて説明する。なお、この実施形態によりこの発明が限定されるものではない。また、下記実施形態における構成要素には、当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。 EMBODIMENT OF THE INVENTION Hereinafter, embodiments of a vehicle light guide and a vehicle lamp according to the present invention will be described based on the drawings. Note that the present invention is not limited to this embodiment. Furthermore, the constituent elements in the embodiments described below include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

図１は、本実施形態に係る車両１の後部の一例を示す図である。図１に示すように、車両１は、車体２と、走行装置３と、車両用灯具１００とを備える。車体２は、運転者が搭乗する運転室を有する。車体２は、走行装置３に支持される。走行装置３は、タイヤ４が装着されるホイールと、車両１の進行方向を変えるための操舵装置と、走行装置３を減速又は停止させるためのブレーキ装置とを有する。車両１は、車体２の側部に設けられる乗降用ドアと、車体２の後部に設けられるバックドア７とを備える。乗降用ドア及びバックドア７はそれぞれ、ヒンジ機構を介して車体２に移動可能に支持される。 FIG. 1 is a diagram showing an example of the rear part of a vehicle 1 according to the present embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a traveling device 3, and a vehicle lamp 100. The vehicle body 2 has a driver's cab in which a driver rides. The vehicle body 2 is supported by a traveling device 3. The traveling device 3 includes wheels on which tires 4 are mounted, a steering device for changing the traveling direction of the vehicle 1, and a brake device for decelerating or stopping the traveling device 3. The vehicle 1 includes an entrance/exit door provided on the side of the vehicle body 2 and a back door 7 provided at the rear of the vehicle body 2. The entry/exit door and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.

以下の説明においては、車両１が水平面と平行な地面に配置されることとし、運転室に搭乗した運転者を基準として、前、後、上、下、左、及び右という用語を用いて各部の位置関係について説明する。前後、上下、左右の各方向は、車両用灯具が車両に搭載された車両搭載状態における方向であって、運転席から車両の進行方向を見た場合における方向を示す。なお、本実施形態では、上下方向は鉛直方向に平行であり、前後方向及び左右方向は水平方向に平行であるとする。 In the following description, it is assumed that the vehicle 1 is placed on the ground parallel to a horizontal plane, and the terms front, rear, top, bottom, left, and right are used to refer to each part with the driver in the driver's cab as a reference. The positional relationship will be explained. The front and back, up and down, and left and right directions are directions when the vehicle lamp is mounted on the vehicle, and are directions when viewed from the driver's seat in the direction of travel of the vehicle. In addition, in this embodiment, the up-down direction is parallel to the vertical direction, and the front-back direction and the left-right direction are parallel to the horizontal direction.

本実施形態において、車両用灯具１００は、車体２の後部の左側及び右側のそれぞれに設けられる。本実施形態では、車両用灯具１００が車体２の後部に設けられる。そのため、前後方向の後方側を車両用灯具１００の正面側とし、前後方向の前方側を車両用灯具１００の背面側として説明する。 In this embodiment, the vehicle lamp 100 is provided on the left and right sides of the rear portion of the vehicle body 2, respectively. In this embodiment, the vehicle lamp 100 is provided at the rear of the vehicle body 2. Therefore, the rear side in the front-rear direction will be referred to as the front side of the vehicle lamp 100, and the front side in the front-rear direction will be referred to as the rear side of the vehicle lamp 100.

車両用灯具１００は、機能ランプを含む。機能ランプとして、車体２の後部に設けられヘッドランプの点灯と連動して点灯するテールランプ、車体２の後部に設けられブレーキ装置の作動と連動して点灯するストップランプ、車体２の後部に設けられ車両１の進行方向を周囲に示すために点灯するリアターンシグナルランプなどが挙げられる。 The vehicle lamp 100 includes a functional lamp. Functional lamps include a tail lamp provided at the rear of the vehicle body 2 that lights up in conjunction with the lighting of the headlights, a stop lamp provided at the rear of the vehicle body 2 that lights up in conjunction with the operation of the brake system, and a stop lamp provided at the rear of the vehicle body 2 that lights up in conjunction with the operation of the brake system. Examples include a rear turn signal lamp that lights up to indicate the direction in which the vehicle 1 is traveling.

車両用灯具１００は、それぞれ車体２側とバックドア７側とに跨って配置される。車体２の後部の左側に設けられる車両用灯具１００の構造と車体２の後部の右側に設けられる車両用灯具１００の構造とは、左右方向について対称であり、実質的に同一の構造である。以下、車体２の後部の右側に設けられる車両用灯具１００について主に説明し、車体２の後部の左側に設けられる車両用灯具１００についての説明は簡略又は省略する。 The vehicle lamps 100 are arranged across the vehicle body 2 side and the back door 7 side, respectively. The structure of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 are symmetrical in the left-right direction and have substantially the same structure. Hereinafter, the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 will be simplified or omitted.

図２は、本実施形態に係る車両用灯具１００の一例を模式的に示す図である。車両用灯具１００は、車体２側に配置される第１灯具ユニット１０と、バックドア７側に配置される第２灯具ユニット２０とを備える。第１灯具ユニット１０と第２灯具ユニット２０とは分離されている。 FIG. 2 is a diagram schematically showing an example of the vehicle lamp 100 according to the present embodiment. The vehicle lamp 100 includes a first lamp unit 10 arranged on the vehicle body 2 side and a second lamp unit 20 arranged on the back door 7 side. The first lamp unit 10 and the second lamp unit 20 are separated.

第１灯具ユニット１０は、ハウジング１１と、第１光源１２と、第２光源１３と、車両用導光体１４と、インナーレンズ１５とを有する。ハウジング１１は、灯室内に上記の第１光源１２、第２光源１３、車両用導光体１４を収容する。ハウジング１１は、複数種類の機能ランプを収容してもよい。 The first lamp unit 10 includes a housing 11 , a first light source 12 , a second light source 13 , a vehicle light guide 14 , and an inner lens 15 . The housing 11 accommodates the first light source 12, the second light source 13, and the vehicle light guide 14 in the lamp chamber. The housing 11 may accommodate multiple types of functional lamps.

第１光源１２及び第２光源１３は、例えばＬＥＤ等の半導体型光源である。第１光源１２は、第１灯具ユニット１０及び第２灯具ユニット２０の両方に光を供給する。第２光源１３は、第１灯具ユニット１０に光を供給し、第１光源１２の光量を補う。第１光源１２及び第２光源１３は、光を発光する発光面１２ａ、１３ａをそれぞれ有する。発光面１２ａ、１３ａは、それぞれ車両用導光体１４の入射部分（後述する入射面１４ａ、入射端面１４ｄ）に向けられている。 The first light source 12 and the second light source 13 are, for example, semiconductor light sources such as LEDs. The first light source 12 supplies light to both the first lamp unit 10 and the second lamp unit 20. The second light source 13 supplies light to the first lamp unit 10 and supplements the amount of light from the first light source 12 . The first light source 12 and the second light source 13 each have light emitting surfaces 12a and 13a that emit light. The light emitting surfaces 12a and 13a are each directed toward an incident portion (an incident surface 14a and an incident end surface 14d, which will be described later) of the vehicle light guide 14.

車両用導光体１４は、第１光源１２及び第２光源１３からの光の一部を正面側（後方）に向けて出射する。車両用導光体１４は、第１光源１２からの光の一部を第２灯具ユニット２０に供給する。車両用導光体１４は、入射側導光部１４Ｐと、出射側導光部１４Ｑと、供給側導光部１４Ｒとを備える。 The vehicle light guide 14 emits part of the light from the first light source 12 and the second light source 13 toward the front side (backward). The vehicle light guide 14 supplies a portion of the light from the first light source 12 to the second lamp unit 20 . The vehicle light guide 14 includes an incident side light guide section 14P, an output side light guide section 14Q, and a supply side light guide section 14R.

入射側導光部１４Ｐは、入射面１４ａと、第１反射面１４ｂと、第２反射面１４ｃとを有する。入射側導光部１４Ｐは、入射面１４ａ側から第１反射面１４ｂ及び第２反射面１４ｃ側にかけて直線状に設けられる。入射側導光部１４Ｐは、後述する出射側導光部１４Ｑの延びる第１方向Ｄ１との間で鋭角を形成するように一方向に延びている。本実施形態において、入射側導光部１４Ｐは、前後方向に沿って延びている。入射側導光部１４Ｐは直線状に延びる形状に限定されず、少なくとも一部が湾曲した形状であってもよい。 The incident side light guide section 14P has an incident surface 14a, a first reflective surface 14b, and a second reflective surface 14c. The incident side light guide section 14P is provided in a straight line from the incident surface 14a side to the first reflective surface 14b and second reflective surface 14c side. The incident side light guide section 14P extends in one direction so as to form an acute angle with a first direction D1 in which an output side light guide section 14Q, which will be described later, extends. In this embodiment, the incident side light guide section 14P extends along the front-rear direction. The incident side light guide portion 14P is not limited to a shape extending linearly, but may have a shape in which at least a portion thereof is curved.

入射面１４ａは、第１光源１２からの光を入射する。入射面１４ａは、第１光源１２からの光を平行光となるように制御する。第１反射面１４ｂは、入射面１４ａで平行光に制御されて入射した光の一部を第１方向Ｄ１に向けて反射する。第２反射面１４ｃは、入射面１４ａで平行光に制御されて入射した光の一部を第２方向Ｄ２に向けて反射する。 The light from the first light source 12 enters the entrance surface 14a. The entrance surface 14a controls the light from the first light source 12 so that it becomes parallel light. The first reflecting surface 14b reflects a part of the light that is controlled to be parallel light and enters the incident surface 14a in the first direction D1. The second reflective surface 14c reflects a part of the light that is controlled to be parallel light and enters the incident surface 14a toward the second direction D2.

本実施形態において、第１方向Ｄ１と第２方向Ｄ２とは、反対方向である。第１方向Ｄ１は、左右方向の右側に向けて前後方向の前方に傾いた方向である。また、第２方向Ｄ２は、左右方向の左側に向けて前後方向の後方に傾いた方向である。なお、第１方向Ｄ１及び第２方向Ｄ２は、互いに異なる方向であれば反対方向でなくてもよい。 In this embodiment, the first direction D1 and the second direction D2 are opposite directions. The first direction D1 is a direction tilted toward the right side in the left-right direction and forward in the front-rear direction. Further, the second direction D2 is a direction tilted toward the left side in the left-right direction and rearward in the front-back direction. Note that the first direction D1 and the second direction D2 do not need to be opposite directions as long as they are different from each other.

出射側導光部１４Ｑは、入射側導光部１４Ｐから第１方向Ｄ１に分岐する。出射側導光部１４Ｑは、第１反射面１４ｂから第１方向Ｄ１に直線状に延びた形状を有する。出射側導光部１４Ｑは、直線状に延びた形状に限定されず、少なくとも一部が湾曲した形状であってもよい。 The output side light guide section 14Q branches in the first direction D1 from the input side light guide section 14P. The output side light guide section 14Q has a shape that extends linearly from the first reflective surface 14b in the first direction D1. The light-emitting side light guiding section 14Q is not limited to a linearly extending shape, and may have at least a partially curved shape.

出射側導光部１４Ｑは、入射端面１４ｄと、プリズム部１４ｅと、第１出射面１４ｆとを有する。入射端面１４ｄは、第１方向Ｄ１の先端部に配置される。入射端面１４ｄは、第２光源１３からの光を入射する。入射端面１４ｄは、第１方向Ｄ１に直交又はほぼ直交する平面状である。なお、入射端面１４ｄは、平面状に限定されず、曲面状であってもよい。 The exit-side light guide section 14Q has an entrance end surface 14d, a prism section 14e, and a first exit surface 14f. The entrance end surface 14d is arranged at the tip in the first direction D1. The light from the second light source 13 enters the incident end surface 14d. The incident end surface 14d has a planar shape that is perpendicular or substantially perpendicular to the first direction D1. Note that the incident end surface 14d is not limited to a planar shape, but may be curved.

プリズム部１４ｅは、第１反射面１４ｂで反射された光及び入射端面１４ｄから入射した光を、車両搭載状態における正面側（後方）に拡散するように反射する。プリズム部１４ｅは、出射側導光部１４Ｑの外周面のうち車両搭載状態における背面側（前方）の部分に、第１方向Ｄ１に沿って複数設けられる。 The prism portion 14e reflects the light reflected by the first reflective surface 14b and the light incident from the incident end surface 14d so as to diffuse toward the front side (rearward) when the prism portion 14e is mounted on the vehicle. A plurality of prism parts 14e are provided along the first direction D1 on the back side (front) part of the outer circumferential surface of the output-side light guide part 14Q in a vehicle-mounted state.

第１出射面１４ｆは、車両搭載状態における正面側の部分に配置され、プリズム部１４ｅによって反射された光を正面側に向けて出射する。 The first output surface 14f is arranged on the front side when the vehicle is mounted on the vehicle, and outputs the light reflected by the prism section 14e toward the front side.

供給側導光部１４Ｒは、入射側導光部１４Ｐから第２方向Ｄ２に分岐する。供給側導光部１４Ｒは、第２反射面１４ｃから第２方向Ｄ２に直線状に延びた形状を有する。供給側導光部１４Ｒは、直線状に延びた形状に限定されず、少なくとも一部が湾曲した形状であってもよい。 The supply side light guide section 14R branches in the second direction D2 from the incident side light guide section 14P. The supply side light guide section 14R has a shape that extends linearly from the second reflective surface 14c in the second direction D2. The supply side light guide portion 14R is not limited to a linearly extending shape, but may have a shape in which at least a portion thereof is curved.

供給側導光部１４Ｒは、第２出射面１４ｇを有する。第２出射面１４ｇは、第２灯具ユニット２０側に向けられる。第２出射面１４ｇは、第２反射面１４ｃで反射されて供給側導光部１４Ｒを通過する光を第２灯具ユニット２０に向けて出射する。第２出射面１４ｇは、例えば平面状であってもよいし、光を集光可能な曲面状であってもよい。 The supply side light guide section 14R has a second output surface 14g. The second light emitting surface 14g is directed toward the second lamp unit 20 side. The second emitting surface 14g emits the light reflected by the second reflecting surface 14c and passing through the supply-side light guide section 14R toward the second lamp unit 20. The second exit surface 14g may have a planar shape, for example, or a curved surface that can condense light.

上記構成において、第１反射面１４ｂは、出射側導光部１４Ｑからの光を入射面１４ａ側又は出射側導光部１４Ｑ側へ向けて反射するように設けられる。第１反射面１４ｂは、出射側導光部１４Ｑから第２方向Ｄ２を見た場合に、供給側導光部１４Ｒの全体を覆う範囲に設けられる。このため、出射側導光部１４Ｑから供給側導光部１４Ｒに向けた光は、第１反射面１４ｂにより反射されることになる。したがって、出射側導光部１４Ｑからの光が供給側導光部１４Ｒに直接到達することを回避可能である。 In the above configuration, the first reflecting surface 14b is provided so as to reflect the light from the output side light guide section 14Q toward the entrance surface 14a side or the output side light guide section 14Q side. The first reflective surface 14b is provided in a range that covers the entire supply side light guide 14R when viewed in the second direction D2 from the output side light guide 14Q. Therefore, the light directed from the output side light guide section 14Q to the supply side light guide section 14R is reflected by the first reflective surface 14b. Therefore, it is possible to prevent the light from the output side light guide section 14Q from directly reaching the supply side light guide section 14R.

インナーレンズ１５は、車両用導光体１４の正面側（後方）に配置される。インナーレンズ１５は、例えば板状であり、車両用導光体１４側に向けられた入射面１５ａと、車両後方に向けられた出射面１５ｂとを有する。インナーレンズ１５は、入射面１５ａまたは出射面１５ｂに拡散部が形成される。このため、車両用導光体１４の第１出射面１４ｆから出射された光が入射面１５ａまたは出射面１５ｂに到達した場合、拡散部で拡散された状態で入射または出射する。インナーレンズ１５の出射面１５ｂは、例えば平坦面とすることができる。 The inner lens 15 is arranged on the front side (backward) of the vehicle light guide 14. The inner lens 15 has a plate shape, for example, and has an entrance surface 15a facing toward the vehicle light guide 14 and an exit surface 15b facing toward the rear of the vehicle. In the inner lens 15, a diffusing portion is formed on the entrance surface 15a or the exit surface 15b. Therefore, when the light emitted from the first exit surface 14f of the vehicle light guide 14 reaches the entrance surface 15a or the exit surface 15b, it enters or exits after being diffused by the diffusion section. The exit surface 15b of the inner lens 15 can be, for example, a flat surface.

第２灯具ユニット２０は、ハウジング２１と、車両用導光体２２とを有する。第２灯具ユニット２０は、不図示のインナーレンズを有してもよい。ハウジング２１は、灯室内に上記の車両用導光体２２を収容する。ハウジング２１は、複数種類の機能ランプを収容してもよい。第２灯具ユニット２０は、第１灯具ユニット１０の車両用導光体１４の第２出射面１４ｇから出射される光が供給される。第２灯具ユニット２０は、供給された光を車両用導光体２２により導光して正面側（車両後方）に向けて出射する。 The second lamp unit 20 includes a housing 21 and a vehicle light guide 22. The second lamp unit 20 may include an inner lens (not shown). The housing 21 accommodates the vehicle light guide 22 described above within the lamp chamber. The housing 21 may accommodate multiple types of functional lamps. The second lamp unit 20 is supplied with light emitted from the second output surface 14g of the vehicle light guide 14 of the first lamp unit 10. The second lamp unit 20 guides the supplied light through a vehicle light guide 22 and emits it toward the front side (vehicle rearward).

次に、上記のように構成された車両用灯具１００の動作の一例を説明する。図３及び図４は、第１灯具ユニット１０による動作の一例を示す図である。図３は、第１光源１２から光を出射する場合の動作を示している。図４は、第２光源１３から光を出射する場合の動作を示している。 Next, an example of the operation of the vehicle lamp 100 configured as described above will be described. 3 and 4 are diagrams illustrating an example of the operation of the first lamp unit 10. FIG. 3 shows the operation when emitting light from the first light source 12. FIG. 4 shows the operation when emitting light from the second light source 13.

運転者によって車両側の方向指示器の操作又はハザードスイッチの操作等、所定の操作が行われた場合、車両用灯具１００は、当該操作に応じて、第１光源１２及び第２光源１３から光を出射する。 When the driver performs a predetermined operation such as operating a direction indicator on the vehicle side or operating a hazard switch, the vehicle lamp 100 emits light from the first light source 12 and the second light source 13 in accordance with the operation. is emitted.

図３に示すように、第１光源１２から出射した光の一部（以下、光Ｌ１と表記する）は、入射面１４ａで平行光に変換された状態で入射側導光部１４Ｐに入射する。光Ｌ１は、第１反射面１４ｂによって第１方向Ｄ１に反射され、出射側導光部１４Ｑに導光される。光Ｌ１は、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆによって背面側（前方）に内面反射された後、プリズム部１４ｅによって正面側（後方）に内面反射され、第１出射面１４ｆから出射される。第１出射面１４ｆから出射された光Ｌ１は、インナーレンズ１５の入射面１５ａに到達し、入射面１５ａの拡散部で拡散された状態でインナーレンズ１５に入射する。インナーレンズ１５に入射した光Ｌ１は、出射面１５ｂから車両後方に出射される。 As shown in FIG. 3, a part of the light emitted from the first light source 12 (hereinafter referred to as light L1) is converted into parallel light at the incident surface 14a and enters the incident side light guide section 14P. . The light L1 is reflected in the first direction D1 by the first reflective surface 14b and guided to the output side light guide section 14Q. The light L1 is internally reflected toward the back side (front) by, for example, the first output surface 14f in the output side light guide section 14Q, and then internally reflected toward the front side (backward) by the prism section 14e. It is emitted from. The light L1 emitted from the first exit surface 14f reaches the entrance surface 15a of the inner lens 15, and enters the inner lens 15 after being diffused by the diffusion portion of the entrance surface 15a. The light L1 that has entered the inner lens 15 is emitted toward the rear of the vehicle from the exit surface 15b.

また、第１光源１２から出射した光の別の一部（以下、光Ｌ２と表記する）は、入射面１４ａで平行光に変換された状態で入射側導光部１４Ｐに入射する。光Ｌ２は、第２反射面１４ｃによって第２方向Ｄ２に反射され、供給側導光部１４Ｒに導光される。光Ｌ２は、供給側導光部１４Ｒにおいて、第２出射面１４ｇから第２灯具ユニット２０に向けて出射される。図示を省略するが、第２灯具ユニット２０に入射した光Ｌ２は、第２灯具ユニット２０の車両用導光体２２から車両後方に出射される。 Further, another part of the light emitted from the first light source 12 (hereinafter referred to as light L2) is converted into parallel light at the incident surface 14a and enters the incident side light guide portion 14P. The light L2 is reflected in the second direction D2 by the second reflective surface 14c and guided to the supply side light guide section 14R. The light L2 is emitted toward the second lamp unit 20 from the second emission surface 14g in the supply-side light guide section 14R. Although not shown, the light L2 that has entered the second lamp unit 20 is emitted from the vehicle light guide 22 of the second lamp unit 20 toward the rear of the vehicle.

また、第１光源１２から出射した光の別の一部（以下、光Ｌ３と表記する）は、第１光源１２から出射され、第１反射面１４ｂによって出射側導光部１４Ｑに導光された後、出射側導光部１４Ｑにおいて内面反射して第２方向Ｄ２に戻ってくる。光Ｌ３の一部である光Ｌ３ａは、第１反射面１４ｂによって例えば入射側導光部１４Ｐ側に反射される。入射側導光部１４Ｐに導光された光Ｌ３ａは、例えば入射面１４ａ又は入射側導光部１４Ｐの内周面から車両用導光体１４の外部に出射され、ハウジング１１等により吸収される。 Further, another part of the light emitted from the first light source 12 (hereinafter referred to as light L3) is emitted from the first light source 12 and guided to the emission side light guide section 14Q by the first reflective surface 14b. After that, the light is internally reflected at the output side light guide section 14Q and returns to the second direction D2. The light L3a, which is a part of the light L3, is reflected by the first reflecting surface 14b toward, for example, the incident side light guide section 14P. The light L3a guided to the incident side light guide part 14P is emitted to the outside of the vehicle light guide 14 from the incident surface 14a or the inner peripheral surface of the incident side light guide part 14P, and is absorbed by the housing 11 etc. .

光Ｌ３の一部である光Ｌ３ｂは、第１反射面１４ｂによって例えば出射側導光部１４Ｑ側に反射される。出射側導光部１４Ｑに導光された光Ｌ３ｂは、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆ及びプリズム部１４ｅによって内面反射を繰り返した後、第１出射面１４ｆから出射される。また、光Ｌ３ｂは、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆ及びプリズム部１４ｅによって内面反射を繰り返した後、再び第１反射面１４ｂに到達し、第１反射面１４ｂによって入射側導光部１４Ｐ側又は出射側導光部１４Ｑ側に反射される。 Light L3b, which is a part of light L3, is reflected by the first reflecting surface 14b, for example, toward the exit side light guide 14Q. Light L3b guided to the exit side light guide 14Q is repeatedly internally reflected, for example, by the first exit surface 14f and the prism portion 14e in the exit side light guide 14Q, and then is emitted from the first exit surface 14f. Light L3b is also repeatedly internally reflected, for example, by the first exit surface 14f and the prism portion 14e in the exit side light guide 14Q, and then reaches the first reflecting surface 14b again, and is reflected by the first reflecting surface 14b toward the entrance side light guide 14P or the exit side light guide 14Q.

このように、第１光源１２から出射した光のうち、出射側導光部１４Ｑから第１反射面１４ｂに向かう光Ｌ３（Ｌ３ａ、Ｌ３ｂ）は、第１反射面１４ｂにおいて入射側導光部１４Ｐ又は出射側導光部１４Ｑに反射される。このため、光Ｌ３は、供給側導光部１４Ｒには到達しない。 In this way, among the light emitted from the first light source 12, the light L3 (L3a, L3b) directed from the output side light guide section 14Q to the first reflective surface 14b is transmitted to the incident side light guide section 14P at the first reflective surface 14b. Alternatively, it is reflected by the output side light guide section 14Q. Therefore, the light L3 does not reach the supply side light guide section 14R.

また、図４に示すように、第２光源１３から出射した光の一部（以下、光Ｌ４と表記する）は、入射端面１４ｄから出射側導光部１４Ｑに入射する。光Ｌ４は、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆによって背面側（前方）に内面反射された後、プリズム部１４ｅによって正面側（後方）に内面反射され、第１出射面１４ｆから出射される。第１出射面１４ｆから出射された光Ｌ１は、上記の光Ｌ１と同様、インナーレンズ１５を介して車両後方に出射される。 Further, as shown in FIG. 4, a part of the light emitted from the second light source 13 (hereinafter referred to as light L4) enters the output side light guide section 14Q from the input end surface 14d. The light L4 is internally reflected toward the back side (front) by the first output surface 14f in the output side light guide section 14Q, and then internally reflected toward the front side (backward) by the prism section 14e, and then reflected internally by the first output surface 14f. It is emitted from. The light L1 emitted from the first emission surface 14f is emitted toward the rear of the vehicle via the inner lens 15, similar to the light L1 described above.

また、第２光源１３から出射した光の別の一部（以下、光Ｌ５と表記する）は、入射端面１４ｄから出射側導光部１４Ｑに入射して出射側導光部１４Ｑを直進し、第１反射面１４ｂに到達する。第１反射面１４ｂに到達した光Ｌ５は、第１反射面１４ｂによって例えば入射側導光部１４Ｐ側に向けて反射される。入射側導光部１４Ｐに導光された光Ｌ５は、例えば入射面１４ａ又は入射側導光部１４Ｐの内周面から車両用導光体１４の外部に出射され、ハウジング１１等により吸収される。 Another part of the light emitted from the second light source 13 (hereinafter referred to as light L5) enters the output side light guide section 14Q from the input end surface 14d and travels straight through the output side light guide section 14Q, The light reaches the first reflective surface 14b. The light L5 that has reached the first reflective surface 14b is reflected by the first reflective surface 14b toward, for example, the incident side light guide section 14P side. The light L5 guided to the incident side light guide 14P is emitted to the outside of the vehicle light guide 14 from the incident surface 14a or the inner peripheral surface of the incident side light guide 14P, and is absorbed by the housing 11 or the like. .

また、第２光源１３から出射した光の別の一部（以下、光Ｌ６と表記する）は、入射端面１４ｄから出射側導光部１４Ｑに入射し、出射側導光部１４Ｑにおいて内面反射して第２方向Ｄ２に進む。光Ｌ６の一部である光Ｌ６ａは、第１反射面１４ｂによって例えば入射側導光部１４Ｐ側に反射される。入射側導光部１４Ｐに導光された光Ｌ６ａは、例えば入射面１４ａ又は入射側導光部１４Ｐの内周面から車両用導光体１４の外部に出射され、ハウジング１１等により吸収される。 Another portion of the light emitted from the second light source 13 (hereinafter referred to as light L6) enters the exit light guide 14Q from the incident end surface 14d, and is internally reflected in the exit light guide 14Q and travels in the second direction D2. Light L6a, which is a portion of light L6, is reflected by the first reflecting surface 14b, for example, toward the entrance light guide 14P. Light L6a guided to the entrance light guide 14P is emitted to the outside of the vehicle light guide 14, for example, from the entrance surface 14a or the inner surface of the entrance light guide 14P, and is absorbed by the housing 11, etc.

光Ｌ６の一部である光Ｌ６ｂは、第１反射面１４ｂによって例えば出射側導光部１４Ｑ側に反射される。出射側導光部１４Ｑに導光された光Ｌ６ｂは、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆ及びプリズム部１４ｅによって内面反射を繰り返した後、第１出射面１４ｆから出射される。また、光Ｌ６ｂは、出射側導光部１４Ｑにおいて、例えば第１出射面１４ｆ及びプリズム部１４ｅによって内面反射を繰り返した後、再び第１反射面１４ｂに到達し、第１反射面１４ｂによって入射側導光部１４Ｐ側又は出射側導光部１４Ｑ側に反射される。 The light L6b, which is a part of the light L6, is reflected by the first reflecting surface 14b toward, for example, the output side light guide section 14Q. The light L6b guided to the output side light guide section 14Q is emitted from the first output surface 14f after repeating internal reflection by, for example, the first output surface 14f and the prism section 14e in the output side light guide section 14Q. . In addition, the light L6b is repeatedly internally reflected by, for example, the first output surface 14f and the prism section 14e in the output side light guide section 14Q, and then reaches the first reflection surface 14b again, and is reflected by the first reflection surface 14b on the incident side. It is reflected toward the light guide section 14P side or the output side light guide section 14Q side.

このように、第２光源１３から出射し、入射端面１４ｄから出射側導光部１４Ｑに入射して第２方向Ｄ２に進行する光Ｌ４、Ｌ５、Ｌ６は、第１反射面１４ｂにおいて入射側導光部１４Ｐ又は出射側導光部１４Ｑに反射される。このため、光Ｌ４、Ｌ５、Ｌ６は、供給側導光部１４Ｒには到達しない。 In this way, the lights L4, L5, and L6 that are emitted from the second light source 13, enter the light-emitting side light guiding section 14Q from the incident end surface 14d, and proceed in the second direction D2 are guided on the incident side at the first reflective surface 14b. The light is reflected by the light section 14P or the output side light guide section 14Q. Therefore, the lights L4, L5, and L6 do not reach the supply-side light guide section 14R.

以上のように、本実施形態に係る車両用導光体１４は、第１光源１２からの光を制御して入射する入射面１４ａと、光の一部を第１方向Ｄ１に反射する第１反射面１４ｂと、光の一部を第１方向Ｄ１とは異なる第２方向Ｄ２に反射する第２反射面１４ｃとを有する入射側導光部１４Ｐと、入射側導光部１４Ｐから第１方向Ｄ１に分岐し、第１反射面１４ｂで反射された光を正面側に出射する第１出射面１４ｆを有する出射側導光部１４Ｑと、入射側導光部１４Ｐから第２方向Ｄ２に分岐し、第２反射面１４ｃで反射された光を第２灯具ユニット２０に供給する第２出射面１４ｇを有する供給側導光部１４Ｒとを備え、第１反射面１４ｂは、出射側導光部１４Ｑからの光を入射面１４ａ側又は出射側導光部１４Ｑ側へ向けて反射するように設けられる。 As described above, the vehicle light guide 14 according to this embodiment includes an entrance side light guide 14P having an entrance surface 14a on which light from the first light source 12 is controlled and incident, a first reflection surface 14b that reflects a portion of the light in a first direction D1, and a second reflection surface 14c that reflects a portion of the light in a second direction D2 different from the first direction D1, an exit side light guide 14Q that branches from the entrance side light guide 14P in the first direction D1 and has a first exit surface 14f that outputs the light reflected by the first reflection surface 14b to the front side, and a supply side light guide 14R that branches from the entrance side light guide 14P in the second direction D2 and has a second exit surface 14g that supplies the light reflected by the second reflection surface 14c to the second lamp unit 20, and the first reflection surface 14b is provided to reflect the light from the exit side light guide 14Q toward the entrance surface 14a side or the exit side light guide 14Q side.

この構成によれば、第１反射面１４ｂが出射側導光部１４Ｑからの光を入射面１４ａ側又は出射側導光部１４Ｑ側へ向けて反射するように設けられるため、当該出射側導光部１４Ｑからの光は供給側導光部１４Ｒには到達しない。これにより、点光等の発生を抑制することができる。 According to this configuration, since the first reflecting surface 14b is provided to reflect the light from the output side light guide 14Q toward the incident surface 14a side or the output side light guide 14Q side, the output side light guide The light from the section 14Q does not reach the supply side light guide section 14R. This makes it possible to suppress the occurrence of spot lights and the like.

本実施形態に係る車両用導光体１４において、第１方向Ｄ１と第２方向Ｄ２とは、反対方向であってもよい。この構成では、出射側導光部１４Ｑを第２方向Ｄ２に進行する光が供給側導光部１４Ｒに到達することが回避される。これにより、点光等の発生を抑制することができる。 In the vehicle light guide 14 according to this embodiment, the first direction D1 and the second direction D2 may be opposite directions. In this configuration, light traveling in the second direction D2 through the output light guide 14Q is prevented from reaching the supply light guide 14R. This makes it possible to suppress the occurrence of point light, etc.

本実施形態に係る車両用導光体１４において、第１反射面１４ｂは、出射側導光部１４Ｑ側から第２方向Ｄ２を見た場合に供給側導光部１４Ｒの全体を覆う範囲に設けられてもよい。この構成では、出射側導光部１４Ｑからの光を第１反射面１４ｂによって確実に入射側導光部１４Ｐ及び出射側導光部１４Ｑに向けて反射することができる。これにより、出射側導光部１４Ｑからの光が供給側導光部１４Ｒに到達することをより確実に回避できる。 In the vehicle light guide 14 according to the present embodiment, the first reflective surface 14b is provided in a range that covers the entire supply side light guide 14R when viewed in the second direction D2 from the output side light guide 14Q side. It's okay to be hit. With this configuration, the light from the output side light guide section 14Q can be reliably reflected by the first reflecting surface 14b toward the input side light guide section 14P and the output side light guide section 14Q. Thereby, it is possible to more reliably prevent the light from the output side light guide section 14Q from reaching the supply side light guide section 14R.

本実施形態に係る車両用導光体１４において、入射側導光部１４Ｐは、出射側導光部１４Ｑとの間で鋭角を形成するように一方向に延びていてもよい。これにより、出射側導光部１４Ｑからの光が供給側導光部１４Ｒに到達することをより確実に回避できる。 In the vehicle light guide 14 according to the present embodiment, the incident side light guide section 14P may extend in one direction so as to form an acute angle with the output side light guide section 14Q. Thereby, it is possible to more reliably prevent the light from the output side light guide section 14Q from reaching the supply side light guide section 14R.

本実施形態に係る車両用導光体１４において、出射側導光部１４Ｑは、第１方向Ｄ１の端部に他の第２光源１３からの光を入射可能な入射端面１４ｄを有し、出射側導光部１４Ｑからの光は、入射端面１４ｄから入射した光を含んでもよい。これにより、入射面１４ａから入射した制御光とは異なる光が供給側導光部１４Ｒに到達することを回避できる。 In the vehicle light guide 14 according to the present embodiment, the output side light guide section 14Q has an input end surface 14d at the end in the first direction D1 into which light from another second light source 13 can enter, and outputs the light from the light guide section 14Q. The light from the side light guiding portion 14Q may include light incident from the incident end surface 14d. Thereby, it is possible to prevent light different from the control light incident from the entrance surface 14a from reaching the supply-side light guide section 14R.

本実施形態に係る車両用灯具１００は、第１光源１２と、上記の車両用導光体１４と、を有する第１灯具ユニット１０と、第１灯具ユニット１０と分離して設けられ、車両用導光体１４の第２出射面１４ｇから出射される光が供給される第２灯具ユニット２０とを備える。この構成によれば、点光等の発生を抑制することができる車両用導光体１４を備えるため、見栄えの良い車両用灯具１００を提供できる。 The vehicular lamp 100 according to the present embodiment includes a first lamp unit 10 having a first light source 12 and the above-mentioned vehicular light guide 14, and is provided separately from the first lamp unit 10. A second lamp unit 20 is provided to which light emitted from the second output surface 14g of the light guide 14 is supplied. According to this configuration, since the vehicular light guide 14 that can suppress the occurrence of flashing or the like is provided, it is possible to provide the vehicular lamp 100 with a good appearance.

本発明の技術範囲は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で適宜変更を加えることができる。例えば、上記実施形態では、入射端面１４ｄが平面状である構成を例に挙げて説明したが、この構成に限定されない。入射端面１４ｄは、第２光源１３からの光を平行光にする形状、当該光を拡散する形状等、所定の制御を行う形状に形成されてもよい。この場合、入射端面１４ｄによる制御は、入射面１４ａによる制御と同一であってもよいし、異なってもよい。 The technical scope of the present invention is not limited to the above embodiments, and changes can be made as appropriate without departing from the spirit of the present invention. For example, in the above embodiment, a configuration in which the incident end surface 14d is planar has been described as an example, but the configuration is not limited to this. The incident end surface 14d may be formed in a shape that performs predetermined control, such as a shape that converts the light from the second light source 13 into parallel light, a shape that diffuses the light, or the like. In this case, the control by the entrance end surface 14d may be the same as the control by the entrance surface 14a, or may be different.

また、上記実施形態では、入射側導光部１４Ｐが、出射側導光部１４Ｑとの間で鋭角を形成するように一方向に延びた構成を例に挙げて説明したが、これに限定されない。入射側導光部１４Ｐと出射側導光部１４Ｑとの間は、直角又は鈍角であってもよい。 Further, in the above embodiment, the incident side light guide section 14P is explained as an example of a configuration extending in one direction so as to form an acute angle with the output side light guide section 14Q, but the invention is not limited to this. . A right angle or an obtuse angle may be formed between the incident side light guide section 14P and the output side light guide section 14Q.

また、上記実施形態では、第１反射面１４ｂが、出射側導光部１４Ｑ側から第２方向Ｄ２を見た場合に供給側導光部１４Ｒの全体を覆う範囲に設けられる構成を例に挙げて説明したが、これに限定されない。出射側導光部１４Ｑから供給側導光部１４Ｒに光が到達しない構成であれば、第１反射面１４ｂは、出射側導光部１４Ｑ側から第２方向Ｄ２を見た場合に供給側導光部１４Ｒの一部を覆う構成であってもよい。 In the above embodiment, the first reflecting surface 14b is provided in a range that covers the entire supply side light guiding section 14R when viewed in the second direction D2 from the exit side light guiding section 14Q side, but the present invention is not limited to this. As long as light does not reach the supply side light guiding section 14R from the exit side light guiding section 14Q side, the first reflecting surface 14b may be configured to cover a portion of the supply side light guiding section 14R when viewed in the second direction D2 from the exit side light guiding section 14Q side.

また、上記実施形態では、第１方向Ｄ１と第２方向Ｄ２とが反対方向である場合を例に挙げて説明したが、これに限定されない。第１方向Ｄ１と第２方向Ｄ２とは異なる方向であればよい。 In the above embodiment, the first direction D1 and the second direction D2 are opposite directions, but this is not limiting. The first direction D1 and the second direction D2 may be different directions.

Ｄ１…第１方向、Ｄ２…第２方向、Ｌ１，Ｌ２，Ｌ３，Ｌ３ａ，Ｌ３ｂ，Ｌ４，Ｌ５，Ｌ６，Ｌ６ａ，Ｌ６ｂ…光、１…車両、２…車体、３…走行装置、４…タイヤ、５…ホイール、７…バックドア、１０…第１灯具ユニット、１１，２１…ハウジング、１２…第１光源、１２ａ，１３ａ…発光面、１３…第２光源、１４，２２，２４…車両用導光体、１４Ｐ…入射側導光部、１４Ｑ…出射側導光部、１４Ｒ…供給側導光部、１４ａ，１５ａ…入射面、１４ｂ…第１反射面、１４ｃ…第２反射面、１４ｄ…入射端面、１４ｅ…プリズム部、１４ｆ…第１出射面、１４ｇ…第２出射面、１５…インナーレンズ、１５ｂ…出射面、２０…第２灯具ユニット、１００…車両用灯具 D1...first direction, D2...second direction, L1, L2, L3, L3a, L3b, L4, L5, L6, L6a, L6b...light, 1...vehicle, 2...vehicle body, 3...travel device, 4...tire , 5... Wheel, 7... Back door, 10... First lighting unit, 11, 21... Housing, 12... First light source, 12a, 13a... Light emitting surface, 13... Second light source, 14, 22, 24... For vehicle Light guide, 14P...Incidence side light guide part, 14Q...Emission side light guide part, 14R...Supply side light guide part, 14a, 15a...Incidence surface, 14b...First reflective surface, 14c...Second reflective surface, 14d ...Incidence end surface, 14e...Prism section, 14f...First exit surface, 14g...Second exit surface, 15...Inner lens, 15b...Output surface, 20...Second lamp unit, 100...Vehicle lamp

Claims (6)

光源からの光を制御して入射する入射面と、前記光の一部を正面背面方向に交差する第１方向に反射する第１反射面と、前記光の一部を前記第１方向とは異なりかつ前記正面背面方向に交差する第２方向に反射する第２反射面とを有する入射側導光部と、
前記入射側導光部から前記第１方向に分岐して前記第１方向に延び、前記第１反射面で反射された前記光を正面側に出射する第１出射面を有する出射側導光部と、
前記入射側導光部から前記第２方向に分岐して前記第２方向に延び、前記第２反射面で反射された前記光を外部ユニットに供給する第２出射面を有する供給側導光部と
を備え、
前記第１反射面は、前記出射側導光部からの光を前記入射面側又は前記出射側導光部側へ向けて反射するように設けられ、
前記第１出射面は、前記出射側導光部が延びる前記第１方向に対して前記正面側の側面部分に配置され、
前記第２出射面は、前記第２方向の端部に配置されて前記第２方向に向けられ、当該第２出射面に対して前記第２方向上に配置される前記外部ユニットに前記光を供給する
車両用導光体。 an incident side light guiding section having an incident surface through which light from a light source is incident in a controlled manner, a first reflecting surface that reflects a portion of the light in a first direction intersecting a front-to-rear direction , and a second reflecting surface that reflects a portion of the light in a second direction different from the first direction and intersecting the front-to-rear direction;
an exit-side light guiding section that branches off from the entrance-side light guiding section in the first direction and extends in the first direction , and has a first exit surface that emits the light reflected by the first reflection surface to a front side;
a supply-side light-guiding section that branches off from the incident-side light-guiding section in the second direction, extends in the second direction , and has a second exit surface that supplies the light reflected by the second reflecting surface to an external unit,
the first reflection surface is provided to reflect light from the output-side light-guiding section toward the incident surface side or the output-side light-guiding section side ,
the first emission surface is disposed on a side surface portion on the front side with respect to the first direction in which the emission-side light-guiding portion extends,
The second light exit surface is disposed at an end in the second direction and faces the second direction, and supplies the light to the external unit disposed on the second direction relative to the second light exit surface.
Vehicle light guide. 前記第１方向と前記第２方向とは、反対方向である
請求項１に記載の車両用導光体。 The light guide for a vehicle according to claim 1, wherein the first direction and the second direction are opposite directions. 前記第１反射面は、前記出射側導光部側から前記第２方向を見た場合に前記供給側導光部の全体を覆う範囲に設けられる
請求項２に記載の車両用導光体。 The light guide for a vehicle according to claim 2, wherein the first reflective surface is provided in a range that covers the entire supply side light guide when viewed in the second direction from the output side light guide. 前記入射側導光部は、前記出射側導光部との間で鋭角を形成するように一方向に延びている
請求項１又は請求項２に記載の車両用導光体。 The light guide for a vehicle according to claim 1 or 2, wherein the incident side light guide section extends in one direction so as to form an acute angle with the output side light guide section. 前記出射側導光部は、前記第１方向の端部に他の光源からの光を入射可能な入射端面を有し、
前記出射側導光部からの光は、前記入射端面から入射した光を含む
請求項１から請求項４のいずれか一項に記載の車両用導光体。 The output-side light guide section has an entrance end surface at an end in the first direction that allows light from another light source to enter therein;
The light guide for a vehicle according to any one of claims 1 to 4, wherein the light from the exit side light guide includes light incident from the incident end surface. 光源と、請求項１から請求項５のいずれか一項に記載の車両用導光体と、を有する第１灯具ユニットと、
前記第１灯具ユニットと分離して設けられ、前記車両用導光体の前記第２出射面から出射される前記光が供給される第２灯具ユニットと
を備える車両用灯具。 a first lighting unit comprising a light source and the vehicle light guide according to any one of claims 1 to 5;
A vehicular lamp comprising: a second lamp unit that is provided separately from the first lamp unit and is supplied with the light emitted from the second exit surface of the vehicular light guide.
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